Housing for fire and smoke detector



FIG. 1 is a plan view of a housing for a fire and smoke detector showing our new design;

FIG. 2 is a side view thereof; and

FIG. 3 is a cross-sectional elevation view of the housing taken substantially along the lines 3--3 of FIG. 1. 

The ornamental design for a housing for a fire and smoke detector, substantially as shown. 